Date: Tue, 7 Oct 2014 17:08:54 +0000 (UTC) From: Neel Natu <neel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r272710 - head/usr.sbin/bhyve Message-ID: <201410071708.s97H8sfT097319@svn.freebsd.org>
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Author: neel Date: Tue Oct 7 17:08:53 2014 New Revision: 272710 URL: https://svnweb.freebsd.org/changeset/base/272710 Log: Implement the FLUSH operation in the virtio-block emulation. This gets rid of the following error message during FreeBSD guest bootup: "vtbd0: hard error cmd=flush fsbn 0" Reported by: rodrigc Reviewed by: grehan Modified: head/usr.sbin/bhyve/pci_virtio_block.c Modified: head/usr.sbin/bhyve/pci_virtio_block.c ============================================================================== --- head/usr.sbin/bhyve/pci_virtio_block.c Tue Oct 7 16:46:11 2014 (r272709) +++ head/usr.sbin/bhyve/pci_virtio_block.c Tue Oct 7 17:08:53 2014 (r272710) @@ -94,6 +94,8 @@ struct vtblk_config { struct virtio_blk_hdr { #define VBH_OP_READ 0 #define VBH_OP_WRITE 1 +#define VBH_OP_FLUSH 4 +#define VBH_OP_FLUSH_OUT 5 #define VBH_OP_IDENT 8 #define VBH_FLAG_BARRIER 0x80000000 /* OR'ed into vbh_type */ uint32_t vbh_type; @@ -217,6 +219,10 @@ pci_vtblk_proc(struct pci_vtblk_softc *s MIN(iov[1].iov_len, sizeof(sc->vbsc_ident))); err = 0; break; + case VBH_OP_FLUSH: + case VBH_OP_FLUSH_OUT: + err = fsync(sc->vbsc_fd); + break; default: err = -ENOSYS; break;
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